HURRY! Which are characteristics of a ray when it hits a boundary and reflects, but not when it hits the boundary and refracts? Check all that apply.

changes direction

changes speed

does not change direction

does not change speed

bounces off the boundary

passes through the boundary

changes direction

changes speed

bounces off the boundary

B. changes speed

F. passes through the boundary

Explanation:

(This Answer is correct on Edge 2021)

A. "changes direction" is INCORRECT bc while the incident ray does change direction in refraction, it also changes direction in reflection, and we require only the characteristics that are present in refraction and not reflection.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)